for determining the difference of meridia?is, &c, 97 



July 16. The third rocket disappeared without explosion. 



II. 



III. 



Mean. 



16.9s 

 15.6 



17.2 

 16.3 

 17.9 

 14.8 

 21.0 

 15.2 

 15.1 



Comparison of Chronometer and Clock. 



Comparison from 15th to i6th — 0.31. 

 Chronometer fast i" 20,408. 



MDCCCXXVI. 



o 



